Polymarket vs. Kalshi
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See where the two biggest prediction markets disagree. Pick any two markets, or start from the biggest gaps below: prices, volume, history and the resolution rules, side by side.
Possibly the same event, on the other platform
Polymarket
Will Vivek Ramaswamy win the 2028 Republican presidential nomination?
0%
Polymarket
Will J.D. Vance win the 2028 Republican presidential nomination?
47%
Polymarket
Will Doug Burgum win the 2028 Republican presidential nomination?
0%
Polymarket
Will Elon Musk win the 2028 Republican presidential nomination?
0%
Polymarket
Will Brian Kemp win the 2028 Republican presidential nomination?
1%
Polymarket
Will John Thune win the 2028 Republican presidential nomination?
0%
Change ×
Will Vivek Ramaswamy be the nominee for the Presidency for the Republican party?
0%
– 0.0pt
Vol $52 today · $1.6M total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.